/Engine/Source/Runtime/Engine/Classes/Engine/AssetManager.h
Returns PrimaryAssetIds that manage a package, with property describing the reference (direct or indirect).
virtual bool GetPackageManagers ( [FName](API\Runtime\Core\UObject\FName) PackageName, bool bRecurseToParents, [TMap](API\Runtime\Core\Containers\TMap)< [FPrimaryAssetId](API\Runtime\CoreUObject\UObject\FPrimaryAssetId), [UE::AssetRegistry::EDependencyProperty](API\Runtime\CoreUObject\Misc\UE__AssetRegistry__EDependencyPr-) > & Managers ) const